<template>
    <div class="icons">
        <swiper :options="swiperOption">
            <!-- 实现轮播图的功能 -->
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <!-- 循环页码 -->
                <div class="icon " v-for="item of page" :key="item.id">
                    <!-- 循环一页中的内容 -->
                    <div class="icon-img">
                        <img class="icon-img-content" :src="item.imgUrl">
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>

<script>
export default {
    name: 'HomeIcons',
    props: {
        list: Array
    },

    data() {
        return {
            swiperOption: {
                autoplay:false
            }
        }
    },
    /* 使用计算属性实现分页功能 */
    computed: {
        pages() {
            const pages = []
            this.list.forEach((item, index) => {
                const page = Math.floor(index / 8)
                if (!pages[page]) {
                    pages[page] = []
                }
                pages[page].push(item)
            })
            return pages
        }
    }
}
</script>

<style lang="stylus" scoped>
@import '../../../assets/styles/varibles.styl'
@import '../../../assets/styles/mixins.styl'
    .icons  >>> .swiper-container/* 是为了让多出来的元素放到第二页，container自带hidden */
        // background:red
        height:0
        padding-bottom:50%
    .icon
        // background:green
        padding-bottom:24%
        float:left
        width:25%
        height:0
        overflow:hidden
        position:relative
        .icon-img
            position:absolute
            top: 0
            left: 0
            right: 0
            bottom: .44rem
            box-sizing:border-box
            padding:.1rem
            .icon-img-content
                display:block
                margin: 0 auto
                height: 100%
    .icon-desc
        position:absolute
        left 0
        right 0
        bottom 0
        height .44rem
        // margin: 0.1rem 0
        // background:blue
        line-height:.44rem
        text-align:center
        color:$darkTextColor
        ellipsis()/* 使用定义的styl样式实现网页空白处理，字体省略号效果 */
            
</style>